document.write( "Question 646951: Karen is twice as old as Maria. Karen is also three years older than Maria. How old is Maria? \n" ); document.write( "
Algebra.Com's Answer #406011 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Write an equation for each statement
\n" ); document.write( ":
\n" ); document.write( "Karen is twice as old as Maria.
\n" ); document.write( "k = 2m
\n" ); document.write( " Karen is also three years older than Maria.
\n" ); document.write( "k = m + 3
\n" ); document.write( "Replace k with 2m (from the 1st statement)
\n" ); document.write( "2m = m + 3
\n" ); document.write( "2m - m = 3
\n" ); document.write( "m = 3 yrs is Maria's age\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );